Technics-SLEH570-cd-sm 维修电路原理图.pdf

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1、file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0000000000.htmService ManualTOP NEXT AD0102032C2Compact Disc Player G SL-EH570Traverse Deck: RAE0152Z Mechanism seriesColour(S).Silver TypeArea(E).Europe.file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0000000000.h

2、tm (1 of 2) 25.4.2003 20:50:06RadioFans.CN 收音机爱 好者资料库file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0000000000.htm 2001 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.TOP NEXT file:/C|/Documents%20and%20Se

3、ttings/Administrator/Plocha/SL-EH570/s0000000000.htm (2 of 2) 25.4.2003 20:50:06RadioFans.CN 收音机爱 好者资料库file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0100000000 x.htm1 NoteTOP PREVIOUS NEXT Refer to the service manual for Model No. SA-EH570 (Order No. AD0102030C2) for information

4、 on Accessories and Packaging. TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0100000000 x.htm 25.4.2003 20:50:39file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0200000000 x.htm2 Handling Precautions for Traverse DeckTOP PREVIOUS NEXT The lase

5、r diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity of clothes or human body. So be careful of electrostatic breakdown during repair of the traverse deck (optical pickup).2.1 Handling of traverse deck (optical pickup) 2.2 Grounding fo

6、r electrostatic breakdown prevention 2.2.1 Human body grounding 2.2.2 Work table grounding TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0200000000 x.htm 25.4.2003 20:50:58file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0201000000.htm2.1 Hand

7、ling of traverse deck (optical pickup)TOP PREVIOUS NEXT 1. Do not subject the traverse deck (optical pickup) to static electricity as it is extremely sensitive to electrical shock.2. To protect the laser diode against electrostatic breakdown, short the flexible board (FFC board) with a clip or simil

8、ar object. Refer to Fig. 2-1. 3. Take care not to apply excessive stress to the flexible board (FFC board).4. Do not turn the variable resistor (laser power adjustment). It has already been adjusted. Refer to Fig. 2-1. Fig. 2-1. file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0201

9、000000.htm (1 of 2) 25.4.2003 20:51:15file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0202000000.htm2.2 Grounding for electrostatic breakdown preventionTOP PREVIOUS NEXT 2.2.1 Human body grounding 2.2.2 Work table grounding TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Adm

10、inistrator/Plocha/SL-EH570/s0202000000.htm 25.4.2003 20:51:36file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0202010000.htm2.2.1 Human body groundingTOP PREVIOUS NEXT Use the anti-static wrist strap to discharge the static electricity from your body. Refer to Fig. 2-2. Fig. 2-2. T

11、OP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0202010000.htm 25.4.2003 20:51:53file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0202020000.htm2.2.2 Work table groundingTOP PREVIOUS NEXT Put a conductive material (sheet) or steel sheet on the ar

12、ea where the traverse deck (optical pickup) is placed, and ground the sheet. Refer to Fig. 2-3. Fig. 2-3. Caution: The static electricity of your clothes will not be grounded through the wrist strap.So take care not to let your clothes touch the traverse deck (optical pickup).TOP PREVIOUS NEXT file:

13、/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0202020000.htm 25.4.2003 20:52:10file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0300000000 x.htm3 Precaution of Laser DiodeTOP PREVIOUS NEXT TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL

14、-EH570/s0300000000 x.htm 25.4.2003 20:52:28file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0400000000 x.htm4 Location of ControlsTOP PREVIOUS NEXT TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0400000000 x.htm 25.4.2003 20:52:47file:/C|/Docum

15、ents%20and%20Settings/Administrator/Plocha/SL-EH570/s0500000000 x.htm5 Operation Checks and Component Replacement/ ProceduresTOP PREVIOUS NEXT G This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components. G For reassembly after

16、operation checks or replacement, reverse the respective procedures. Special reassembly procedures are described only when required. /5.1 Checking for the main P.C.B. 5.2 Checking for the CD servo P.C.B. 5.3 Replacement for the traverse deck assy 5.4 Replacement for the belt, loading motor assy and l

17、oading switch TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0500000000 x.htm 25.4.2003 20:53:43file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0501000000.htm5.1 Checking for the main P.C.B.TOP PREVIOUS NEXT G Check the main P.C.B. as shown ab

18、ove. /TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0501000000.htm 25.4.2003 20:54:02file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0502000000.htm5.2 Checking for the CD servo P.C.B.TOP PREVIOUS NEXT G Follow the (Step 1) - (Step 3) of item

19、5.1.file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0502000000.htm (1 of 2) 25.4.2003 20:54:21file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0502000000.htmG Check the CD servo P.C.B. as shown below. TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administ

20、rator/Plocha/SL-EH570/s0502000000.htm (2 of 2) 25.4.2003 20:54:21file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htm5.3 Replacement for the traverse deck assyTOP PREVIOUS NEXT G Follow the (Step 1) - (Step 3) of item 5.1.G Follow the (Step 1) - (Step 5) of item 5.2.file

21、:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htm (1 of 6) 25.4.2003 20:54:39file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htmfile:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htm (2 of 6) 25.4.2003 20:54:39file:

22、/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htmfile:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htm (3 of 6) 25.4.2003 20:54:39file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htmfile:/C|/Documents%20and%20Setting

23、s/Administrator/Plocha/SL-EH570/s0503000000.htm (4 of 6) 25.4.2003 20:54:39file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htmfile:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htm (5 of 6) 25.4.2003 20:54:39file:/C|/Documents%20and%20Settings

24、/Administrator/Plocha/SL-EH570/s0503000000.htmTOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0503000000.htm (6 of 6) 25.4.2003 20:54:39file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0504000000.htm5.4 Replacement for the belt, loading motor as

25、sy and loading switchTOP PREVIOUS NEXT G Follow the (Step 1) - (Step 3) of item 5.1.G Follow the (Step 1) - (Step 5) of item 5.2.G Follow the (Step 1) - (Step 9) of item 5.3.file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0504000000.htm (1 of 2) 25.4.2003 20:54:58file:/C|/Document

26、s%20and%20Settings/Administrator/Plocha/SL-EH570/s0504000000.htmTOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0504000000.htm (2 of 2) 25.4.2003 20:54:58file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0600000000 x.htm6 Error Code Display and S

27、ervo Adjustment FunctionTOP PREVIOUS NEXT This unit has an error code display function, so that if the unit operates incorrectly, the fault is displayed using an error code on the FL display of the Tuner/Amplifier (SA-EH570). It also has a servo adjustment function for displayingthe status of servo

28、system functions (Focus, Tracking, CLV servo) on the FL display of the Tuner/Amplifier. The system control IC and FL display are part of the Tuner/Amplifier so make sure the system has been connected properly beforeusing these functions. Use these two functions for guidance during fault diagnosis an

29、d repair.Note: Check beforehand for scratching or soiling of the test disc (SZZP1054C), and soiling or other problems with the pickup lens.6.1 Error code display procedure 6.1.1 Automatic adjustment results 6.1.2 Checking the mechanism switches 6.2 Servo adjustment procedure 6.3 Error code based on

30、troubleshooting TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0600000000 x.htm 25.4.2003 20:55:16file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0601000000.htm6.1 Error code display procedureTOP PREVIOUS NEXT 6.1.1 Automatic adjustment result

31、s 6.1.2 Checking the mechanism switches TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0601000000.htm 25.4.2003 20:55:51file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0601010000.htm6.1.1 Automatic adjustment resultsTOP PREVIOUS NEXT 1. Turn o

32、n the power.2. Load the test disc (SZZP1054C).3. Hold down the REPEAT button for at least 2 seconds, and then press the STOP button for at least 2 seconds while continuing to hold down the REPEAT button.4. A servo section error code is displayed. Refer to Error code based on troubleshooting. Use thi

33、s error code display as a guideline for finding the malfunction point in the servo circuitry. If the error code E00 is displayed, the unit isOK.TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0601010000.htm 25.4.2003 20:56:10file:/C|/Documents%20and%20Settings/Ad

34、ministrator/Plocha/SL-EH570/s0601020000.htm6.1.2 Checking the mechanism switchesTOP PREVIOUS NEXT 1. After a servo section error code is displayed, press the F.SKIP button.2. A mechanism OK/NG error code is displayed. Refer to Table 6-1. This error code can be used diagnose whether the mechanism is

35、OK or not. If there are multiple errors, these can be displayed successively by pressing the F.SKIP button.3. Press the STOP button, then remove the disc and turn off the power. (The error code display mode is canceled.)Table 6-1.FL display Symptom Cause H15 When CD tray opens, it closes by itself.T

36、ray open detect switch (S790) fault.H16 When CD tray closes, it opens by itself.Tray close detect switch (S791) fault.F15 Does not play even if the PLAY button is pressed.Pickup rest position detect switch (S701) fault.F26 Disc not move even if the PLAY button is pressed. System control and servo pr

37、ocessor IC (IC451, IC702) fault.TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0601020000.htm 25.4.2003 20:56:27file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0602000000.htm6.2 Servo adjustment procedureTOP PREVIOUS NEXT 1. Turn on the power.

38、2. Load the test disc (SZZP1054C).3. Hold down the REPEAT button for at least 2 seconds, and then press the PAUSE button for at least 2 seconds while continuing to hold down the REPEAT button.4. Press the PLAY button, and play for 10 seconds.5. Servo adjustment results are displayed. Refer to Fig. 6

39、-2. For further information about servo adjustment results, refer to Fig. 6-3. Fig. 6-2. Fig. 6-3. file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0602000000.htm (1 of 2) 25.4.2003 20:56:44file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0602000000.htm6. Remove t

40、he disc and turn off the power.TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0602000000.htm (2 of 2) 25.4.2003 20:56:44file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0603000000.htm6.3 Error code based on troubleshootingTOP PREVIOUS NEXT G Th

41、is unit is satisfactory if the error code is E00 and E02 .G Before testing, check that the test disc is free of scratches and optical pickup is clean.FL error code/display Symptom Probable cause Signal to check Normal voltage and waveform values Signal name Location PLAY STOP E01Focus and tracking o

42、ffset adjustments not completed in the specified time period.Clocks X1 IN and X2 OUT, power supply VDD and reset/RST, all on IC702.MDATA, MCLK, MLD and SENSE signals to/from mechanism controller.MDATAIC702-8 pin0.3 V0 VMCLKIC702-7 pin2.9 VMLDIC702-9 pin2.9 V/RSTIC702-18 pin2.9 V2.9 VX1 INIC702-58 pi

43、nX2 OUTIC702-59 pinE03, E05, E07, E09, E0B, E0D, E0FDisc play unstable.Scratches or contaminants on disc surface.Focus and Tracking servo circuit (check waveforms, voltages and part values.)Spindle driver circuit.Optical pickup.FEIC702-32 pin1.7 Vfile:/C|/Documents%20and%20Settings/Administrator/Plo

44、cha/SL-EH570/s0603000000.htm (1 of 3) 25.4.2003 20:57:01file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0603000000.htmTEIC702-33 pin1.7 VFODIC702-28 pin1.7 V1.7 VTRDIC702-27 pin1.7 V1.7 V/RFDETIC702-38 pin0 V3.3 VRFTJ7011.0 VSTATIC702-17 pin3.3 V0 VE04, E06, E0C, E0E,Best Eye (PD

45、balance) adjustment not completed in the specified time period.Scratches or contaminants on disc surface.Focus and Tracking servo circuit (check waveforms, voltages and part values.)Optical pickup.FBALIC702-30 pin1.7 V1.7 VRFIC701-8 pin1.0 VFEIC702-32 pin1.7 VOFTIC702-36 pin0 V0 Vfile:/C|/Documents%

46、20and%20Settings/Administrator/Plocha/SL-EH570/s0603000000.htm (2 of 3) 25.4.2003 20:57:01file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0603000000.htmE08, E0AFocus and Tracking gain adjustment not completed in specified time period.Scratches or contaminants on disc surface.Focus

47、 and Tracking servo circuit (check waveforms, voltages and part values.)Optical pickup.FEIC702-32 pin1.7 VTEIC702-33 pin1.7 VOFTIC702-36 pin0 V0 VTOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0603000000.htm (3 of 3) 25.4.2003 20:57:01file:/C|/Documents%20and%20

48、Settings/Administrator/Plocha/SL-EH570/s0700000000 x.htm7 To Supply Power SourceTOP PREVIOUS NEXT This unit is designed to operate on power supplied from system connected./When a component requires service, use the system connections to supply power source. /For system connections, refer to Fig.7-1.

49、 Fig. 7-1. TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0700000000 x.htm 25.4.2003 20:57:21file:/C|/Documents%20and%20Settings/Administrator/Plocha/SL-EH570/s0800000000 x.htm8 Schematic Diagram NotesTOP PREVIOUS NEXT G This schematic diagram may be modified at

50、 any time with the development of new technology. Notes: G S601: CD edit switch (EDIT)G S602: Repeat switch (REPEAT)G S603: Random play switch (RANDOM)G S611: Disc tray open/close switch/( OPEN/CLOSE)G S612: Pause switch ( )G S613: F.Skip/search switch ( )file:/C|/Documents%20and%20Settings/Administ